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      Bently Nevada 128608-02
      Bently Nevada 128608-02
      · Product image is representative; revision or series may vary. Contact us to request a specific version.
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      128608-02

      1/2-in NPT conduit adapter
      In Stock
      Ships by Tuesday, June 16
      Fast Shipping Available

      Product Information:

      Part number 128608-02 represents the Bently Nevada 1/2-inch NPT conduit adapter. This industrial hardware accessory is used to directly connect flexible or rigid conduits to vibration sensor housings. It protects the connection cable from harsh environments, mechanical stress, and moisture.

      Warranty Policy
      We provide 1 year warranty for all remaining parts.
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      Return Notice
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
      Shiping Mode
      Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
      Parts Availability
      Moore automated offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
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      Technical specifications for 128608-02

      • Manufacturer:
        Bently Nevada
      • Product Category:
        TSI System
      • Estimated shipping dimensions:
        5.8 x 8.3 x 12.5 cm
      • Weight:
        0.28 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Product Type:
        1/2-in NPT conduit adapter
      • Category Series:
        190501 Velomitor CT Transducer
      • Sensitivity:
        3.94 mV/mm/s (100 mV/in/s) ±5%.
      • Temperature Sensitivity:
        -8% to +5% typical over the operating temperature range
      • Transverse Response:
        Less than 5% of the axial sensitivity
      • Amplitude Linearity:
        ±2% to 63.5 mm/s pk (2.5 in/s pk)
      • Output Bias Voltage:
        10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B
      • Dynamic Output Impedance:
        <400 Ω typical
      • Operating Temperature:
        -40°C to +85°C (-40°F to +185°F)
      • Storage Temperature:
        -40°C to +100°C (-40°F to +212°F)
      • Shock Limit:
        5000 g pk, maximum
      • Humidity Limit:
        100% condensing, non-submerged
      • Stock:
        50
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      Alternative Names

      12860802 128608 02 I28608-02 1286O8-O2 04284020-01 107756-01 107754-01 125094-01 128038-01 128689-01 128690-01 190501-09-99-00 190501-12-00-01 190501-02-99-00

      Information

      Overview Manuals Physical info Primary Application

      Features:

      • 190501 Velomitor CT Transducer
      • 1/2-in NPT conduit adapter
      • Parameters are specified from +20°C to +30°C (+68°F to +86°F) and 100 Hz unless otherwise indicated
      The Velomitor CT Velocity Transducer is a low-frequency version of our standard Velomitor Piezo-velocity Sensor. Its design specifically measures casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies that operate at or above 90 rpm (100 to 300 rpm typical).

      The Velomitor CT Transducer can measure vibration amplitudes at these frequencies as well as the vibration frequencies generated by the fan motor and speed reducer.

      The 128608-02 Bently Nevada 1/2-in NPT conduit adapter may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
      Bently Nevada 128608-02 1/2-in NPT conduit adapter Manuals(Datasheets), Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
      Mounting Surface: 33 mm diameter (1.3 in diameter). 
      Height: 82 mm (3.2 in).
      Case Material: 316L stainless steel
      Connector: 2-pin 316L stainless steel MIL-C-5015, top.
      Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
      Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer.
      Mounting Angle: Any orientation.
      Recommended Cable Length: 219 m (720 ft ) Assuming max vibration of 4 in/s, frequency 1 kHz, and cable capacitance 200 pf/m. For longer lengths, contact Bently Nevada Tech Support.
      According to the official datasheet for the Bently Nevada 190501 Velomitor CT, this adapter is the standard mounting hardware for the 190501 Velomitor CT (cooling tower) velocity sensor. The Velomitor CT is used to measure low-frequency casing vibrations in low-speed operating equipment such as induced draft cooling towers and air-cooled heat exchangers.

      Manuals

      Technical notes

      The 128608-02 is a 300 Series stainless steel 1/2-inch NPT conduit adapter manufactured by Bentley Nevada. It is designed for the 190501 Velomitor CT low-frequency velocity sensor, used to connect a flexible, liquid-tight metal conduit to the top of the sensor. This component primarily protects the internal signal cable from mechanical abrasion and chemical corrosion in harsh environments and is used in vibration monitoring systems for cooling towers and air-cooled heat exchanger fan assemblies.

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      FAQ

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      • How does the 128608-02 optimize high-integrity signal transmission in advanced machinery condition monitoring architectures?
        The 128608-02 is designed to support reliable signal communication and measurement consistency in critical industrial monitoring environments.
      • Why is the 128608-02 considered a key component of high-availability rotating equipment protection systems?
        The 128608-02 helps maintain reliable monitoring performance, helping operators detect abnormal machine behavior before failure occurs.
      • How does the 128608-02 maintain signal fidelity in environments with long installation distances and complex industrial cabling?
        The 128608-02 is designed to minimize signal attenuation and maintain measurement integrity throughout the monitoring chain.
      • Why is the configuration architecture of 128608-02 critical for achieving calibration consistency and measurement repeatability?
        128608-02 helps ensure that the monitoring system maintains reliable and repeatable performance over long-term operation.
      • What commissioning parameters should engineers verify before deploying 128608-02?
        When commissioning 128608-02, engineers should verify system compatibility, wiring integrity, calibration settings, and environmental operating conditions.
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      Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.
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